Home / 195,639.92-270,047.40-115,064

Finding the Fourth Proportional to 195,639.92, 270,047.40 and 115,064

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Solution

The fourth proportional to 195,639.92, 270,047.40 and 115,064 is: 158,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,639.92 : 270,047.40 = 115,064 : x
  2. Step 2: Convert to fraction form
    195,639.92/270,047.40 = 115,064/x
  3. Step 3: Cross multiply
    195,639.92x = 270,047.40 × 115,064
  4. Step 4: Simplify right side
    195,639.92x = 31,072,734,033.60
  5. Step 5: Solve for x
    x = 31,072,734,033.60/195,639.92
  6. Step 6: Final answer
    x = 158,826.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.